CD drive identification.

GeirW · 15th November 2004, 02:32 PM

Gday.

In the last days, i have been doing some cleanup
amongst various electronic. And in the prosses i have
found some cd drives. (just the drive) How to ID them,
they haven`t got any labeling.

btw. i also found two cdp`s: marantz cd4000 & cd53.
the 4000 is fully working, but the drive in the 53. is non-working.
(Won`t read/load)
what drive is it in the 53. (standard modell)
and what is the quality of this cdp.
(i know, both are cheap players, but is it something worth fixing,
upgrade on.)

hiwiho · 15th November 2004, 10:57 PM

Well, you can implement almost any mod made for the cd-63 in the 53 - it's the same without the hdam-modules in the analog out. It's drive is a cdm12, but I don't know the revision.

Art · 17th November 2004, 07:52 AM

Hi,
It's CDM12.1, widely used in Marantz's CDP in that period. If it's spinning the disc but alway show 'No Disc'. You may try to adjust the POT at the Laser Module first (CW turn).
If it's still not work, then change it. I though, it's not hard to find them somewhere in Europe. Good luck.
Regards,
Art

GeirW · 17th November 2004, 02:59 PM

Gday.

TnX. for the replies.
@Art. The symtom are similar to what you describe.
The CD is spinning. nothing wrong there.
The tray open/closes fine.
The thing is that after i press "play" or any button,
the display shows the right command, but it simply will not read.
After showing "play" for awhile, the drive stops.

Art · 18th November 2004, 12:38 PM

Hi GeirW,

That happen to me too. I try to tune the small POT (VR) at the laser pickup. And it's work. I though it's increase the laser level or increase the sensitivity of sensor. A year after that, the laser pickup completely dead, then I buy the new one to substitute.

Regards,
Art.

hiwiho · 18th November 2004, 12:52 PM

Yep, that's the laser diode current. More current -> more light -> shorter lifespan!

A new pickup for the 12.4 is around 25euros, complete drive+pickup 35euros if not ordered via marantz service

GeirW · 18th November 2004, 01:28 PM

Gday.

TnX. for the feedback guy`s,
will try it out, and see if it`s the laser that`s foulty or not.
a new transport/drive unit is out of the question,
Do anyone of ya know anything about the
circuit quality and DAC of the 53.

hiwiho · 18th November 2004, 01:46 PM

Use the search function and look for "cd 63" or similar - there's plenty info waiting to be read. As far as I remember, there is a lot of noise on the supply rails to the different stages. You could/should additionally go for a more precise clock (Tent, Kwak or lcaudio). I've got kwak7's in both players I own and it is an unbelievable improvement. The conversion chip of the marantz is mediocre, I think. I once owned an unmodded cd63 but was feeling comfortable with it's warm sound.

If the housing is ok, you might consider selling it at ebay. There are a lot of people searching cd53/63 for modding purposes. I sold mine with a totally dead laser drive board for 40euros. The guy repaired & modded it and sold it for far more. So we both were happy with the deal...

hiwiho · 18th November 2004, 01:51 PM

btw: the cdm12.x is very sensitive concerning dust on the metallic bar where the laser unit glides on. You'll have to carefully clean and re-oil it. Otherwise the player skips on the last couple of songs.

15th November 2004, 02:32 PM	#1
GeirW diyAudio Member Join Date: Jan 2004 Location: Trondheim, Norway	CD drive identification. Gday. In the last days, i have been doing some cleanup amongst various electronic. And in the prosses i have found some cd drives. (just the drive) How to ID them, they haven`t got any labeling. btw. i also found two cdp`s: marantz cd4000 & cd53. the 4000 is fully working, but the drive in the 53. is non-working. (Won`t read/load) what drive is it in the 53. (standard modell) and what is the quality of this cdp. (i know, both are cheap players, but is it something worth fixing, upgrade on.)

17th November 2004, 07:52 AM	#3
Art diyAudio Member Join Date: Oct 2002 Location: Thailand	Module for CD-53 Hi, It's CDM12.1, widely used in Marantz's CDP in that period. If it's spinning the disc but alway show 'No Disc'. You may try to adjust the POT at the Laser Module first (CW turn). If it's still not work, then change it. I though, it's not hard to find them somewhere in Europe. Good luck. Regards, Art

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
FS: Hitachi Router and Terk outdoor HD antenna, BD-Rom drive, Xbox HD Drive and more.	Dougie085	Swap Meet	0	3rd May 2008 07:31 PM
mix current drive with voltage drive at LF?	capslock	Multi-Way	0	27th April 2006 10:17 AM
Idler wheel drive vs. Belt-drive	mig-ru	Analogue Source	4	3rd December 2003 12:06 AM
Computer Question-Any Problems Transferring Office 97 From D Drive to C Drive	kelticwizard	Everything Else	12	22nd January 2003 03:34 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

15th November 2004, 10:57 PM	#2
hiwiho diyAudio Member Join Date: Sep 2004 Location: Berlin	Well, you can implement almost any mod made for the cd-63 in the 53 - it's the same without the hdam-modules in the analog out. It's drive is a cdm12, but I don't know the revision.

17th November 2004, 02:59 PM	#4
GeirW diyAudio Member Join Date: Jan 2004 Location: Trondheim, Norway	Gday. TnX. for the replies. @Art. The symtom are similar to what you describe. The CD is spinning. nothing wrong there. The tray open/closes fine. The thing is that after i press "play" or any button, the display shows the right command, but it simply will not read. After showing "play" for awhile, the drive stops.

18th November 2004, 12:38 PM	#5
Art diyAudio Member Join Date: Oct 2002 Location: Thailand	Hi GeirW, That happen to me too. I try to tune the small POT (VR) at the laser pickup. And it's work. I though it's increase the laser level or increase the sensitivity of sensor. A year after that, the laser pickup completely dead, then I buy the new one to substitute. Regards, Art.

18th November 2004, 12:52 PM	#6
hiwiho diyAudio Member Join Date: Sep 2004 Location: Berlin	Yep, that's the laser diode current. More current -> more light -> shorter lifespan! A new pickup for the 12.4 is around 25euros, complete drive+pickup 35euros if not ordered via marantz service

18th November 2004, 01:28 PM	#7
GeirW diyAudio Member Join Date: Jan 2004 Location: Trondheim, Norway	Gday. TnX. for the feedback guy`s, will try it out, and see if it`s the laser that`s foulty or not. a new transport/drive unit is out of the question, Do anyone of ya know anything about the circuit quality and DAC of the 53.

18th November 2004, 01:46 PM	#8
hiwiho diyAudio Member Join Date: Sep 2004 Location: Berlin	Use the search function and look for "cd 63" or similar - there's plenty info waiting to be read. As far as I remember, there is a lot of noise on the supply rails to the different stages. You could/should additionally go for a more precise clock (Tent, Kwak or lcaudio). I've got kwak7's in both players I own and it is an unbelievable improvement. The conversion chip of the marantz is mediocre, I think. I once owned an unmodded cd63 but was feeling comfortable with it's warm sound. If the housing is ok, you might consider selling it at ebay. There are a lot of people searching cd53/63 for modding purposes. I sold mine with a totally dead laser drive board for 40euros. The guy repaired & modded it and sold it for far more. So we both were happy with the deal...

18th November 2004, 01:51 PM	#9
hiwiho diyAudio Member Join Date: Sep 2004 Location: Berlin	btw: the cdm12.x is very sensitive concerning dust on the metallic bar where the laser unit glides on. You'll have to carefully clean and re-oil it. Otherwise the player skips on the last couple of songs.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)